Yeah, artists will need to know how they'll be compensated in exchange for their time and services. Unfortunately If there isn't a motive, then you're probably going to find no one who will take you up on your offer.

True. I never found ANY artist worth hiring that didn't charge a fee. If you have a decent budget I'd go for these guys (I opened a similar thread days ago and gave them a shot) and this is the manga WIP they sent me.
This pretty much proves how awesome your comic will be. They're cheaper than others I came across, just google "toon usa"

Can't say i'm not interested, but here is some of my art. Let me know if this is the quality you're looking for and than we can see if it's something i'd be interested in working on. It sounds like it could be a fun project and I may have some time on my hands pretty soon.